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OPA622AP Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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OPA622AP Datasheet(HTML) 1 Page - Burr-Brown (TI) |
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1 / 18 page  OPA622 FEATURES q LARGE SIGNAL BANDWIDTH: 150MHz (AP), 200MHz (AU) (Voltage-Feedback) q HIGH OUTPUT CURRENT: ±70mA q SLEW RATE: 1500V/ µs (AP), 1700V/µs (AU) q DIFFERENTIAL GAIN: 0.15% q DIFFERENTIAL PHASE: 0.08 ° q EXCELLENT BANDWIDTH/SUPPLY CURRENT RATIO: 200MHz/5mA q LOW INPUT BIAS CURRENT: –1.2 µA APPLICATIONS q BROADCAST/HDTV EQUIPMENT q COMMUNICATIONS q PULSE/RF AMPLIFIERS q ACTIVE FILTER q HIGH SPEED ANALOG SIGNAL PROCESSING q MULTIPLIER OUTPUT AMP q DIFFERENTIATOR FOR DIGITIZED VIDEO SIGNALS The feedback buffer stage provides 700MHz band- width, a very high slew rate, and a very short signal delay time. It is designed primarily for interstage buffering and not for driving long cables. When com- bined with the current-feedback amplifier section, the OPA622 can be interconnected as a voltage-feedback amplifier with two identical high-impedance inputs. In this configuration, it features a low common-mode gain, low input offset, and, due to the delay time of the additional feedback buffer, a decrease in frequency bandwidth compared with the current-feedback configuration. Unlike “classical” operational amplifi- ers, the OPA622 achieves a nearly constant bandwidth over a wide gain and output voltage range. The external setting of the open-loop gain with R OG avoids a large compensation capacitor, improves the slew rate, and allows a frequency response adaption to various gains and load conditions. International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 Wide-Bandwidth OPERATIONAL AMPLIFIER DESCRIPTION The OPA622 is a monolithic amplifier component designed for precision wide-bandwidth systems including high-resolution video, RF and IF circuitry, and communications equipment. It includes a mono- lithic integrated current-feedback operational amplifier block and a voltage buffer block, which, when combined, form a voltage-feedback operational amplifier. When combined as a current-feedback amplifier, it provides a 280MHz large-signal bandwidth at ±2.5V output level and a 1700V/ µs slew rate. The output buffer stage can deliver ±70mA output current. The high output current capability allows the OPA622 to drive two 50 Ω or 75Ω lines with ±3V output swing, making it ideal along with the low differential gain/phase errors for RF, IF, and video applications. ® OPA622 OPA622 VOLTAGE-FEEDBACK OPA622 VFA 3 4 +In R Q R 1 R IN 50 Ω –5V V IN I Q Adjust 2 8 13 R OG 9 50 Ω R 2 V OUT 10 –In BUF+ BUF– C OTA CURRENT-FEEDBACK OPA622 CFA 4 +In R Q R IN 50 Ω –5V V IN I Q Adjust 2 13 9 50 Ω R 2 C OTA 3 100 Ω V OUT 10 R 1 BUF+ © 1991 Burr-Brown Corporation PDS-1131E Printed in U.S.A. March, 1995 |
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